Nine people — including a 6-year-old boy — were injured when a car driven by a person in a wheelchair who uses hand controls to operate the vehicle hopped a curb and slammed into a building Thursday evening in Brooklyn, officials and sources said.

The driver’s side of the crashed car.Stefan Jeremiah

The driver, identified by police sources as S. Pierre-Louis, 40, lost control while making a turn near Glenwood Road and Nostrand Avenue in Flatbush around 7:30 p.m., sending the car into a crowd of pedestrians, cops said.

Investigators believe a malfunction in the car’s hand controls — which are designed for the handicapped to operate the gas and break — may have caused the crash, sources said.

The car also hit a pickup truck and came to rest only after striking a building at 2095 Nostrand Ave.

The pedestrians and people in both vehicles were removed with injuries that were not life-threatening.